ERNiFeCr-2/UNS N07718/W.Nr. 2.4668 AWS A5.14 Wire

Overview

ERNiFeCr-2 is used for TIG welding alloys 718, 706, and X-750.

It is mainly used for welding high strength aircraft components and liquid rocket components involving cryogenic temperatures. High heat input processes, such as MIG welding, often result in micro fissuring.

The weld metal is age hardenable and has mechanical properties comparable to those of the base metals. The filler metal can be used with both the gas metal arc and gas tungsten arc processes.

ERNiFeCr-2    shows good mechanical properties like tensile strength, fatigue strength and creeps rupture strength. This product shows high resistance to chloride and sulphide stress corrosion cracking. This MIG and TIG welding wire offer immune to temperatures. This wire has good welding characteristics.

Limiting Chemical Composition, %

Nickel…………………………………………………………………………………………………………………………………………………………….50.00-55.00

Chromium………………………………………………………………………………………………………………………………………………………17.00-21.00

Molybdenum………………………………………………………………………………………………………………………………………………………2.80-3.30

Niobium……………………………………………………………………………………………………………………………………………………………..4.75-5.00

Titanium…………………………………………………………………………………………………………………………………………………………….0.65-1.15

Manganese………………………………………………………………………………………………………………………………………………………..0.35 max.

Iron………………………………………………………………………………………………………………………………………………………………..11.95-24.80

Silicon………………………………………………………………………………………………………………………………………………………………..0.35 max.

Aluminium……………………………………………………………………………………………………………………………………………………0.20-0.80max.

Carbon……………………………………………………………………………………………………………………………………………………………….0.08 max.

Phosphorous…………………………………………………………………………………………………………………………………………………….0.015 max.

Sulfur………………………………………………………………………………………………………………………………………………………………0.0015 max.

Cobalt…………………………………………………………………………………………………………………………………………………………………1.00 max.

Physical properties

Melting point Co	Coefficient of Expansion.21-9 Co,μm/m*Co	Electrical Resistivity, μQ*m	Density g/cm3
1260-1336	13.0	1.25	8.19

Mechanical Properties

Tensile strength MPa(psi)	Elongation A %
1138(165,000)	≥25

Corrosion Resistance

Corrosion can be an unrelenting foe in various industrial settings. ErNiFeCr-2’s outstanding corrosion resistance is a testament to its longevity and reliability, even in highly corrosive conditions. This attribute is paramount in marine and chemical processing applications.

High-Temperature Performance  

ErNiFeCr-2 filler metal is well-suited for high-temperature applications in various industries, including power generation, heat treatment, and metal refining. The welds produced with this filler metal can withstand prolonged exposure to elevated temperatures without significant loss of mechanical strength or corrosion resistance.

Heat treatment 

ERNiFeCr-2 does not require any heat treatment. However, controlling the interpass temperature during welding is essential to prevent cracking and distortion.

Product Forms And Packaging (0ther sizes available -please contact us)

Product	Diameter	Length	Packaging
Wire For MIG/GMAW Welding	0.8mm/1.0mm/1.2mm/1.6mm/2.0mm/2.4mm /2.5mm/3.2mm	–	33 lbs (15kgs)
Rods For TIG/GTAW Welding	2.0mm /2.4mm /2.5mm/3.2mm/4.0mm/5.0mm	915mm-1000mm	11 lbs (5kgs)
Wire For SAW Welding	2.0mm /2.4mm /2.5mm /3.2mm /4.0mm/5.0mm	–	60 lbs (27kgs)